These Things Keep Coming Up On Here
Again such dryers were intended for ladies to dry their danties such as nylons or knickers. This was in an era when nice girls were supposed to hand wash such things after being worn. This usually resulted in bathrooms a dripping mess at night from all that handwash hung to dry, or worse in the case of crowded/multiperson living (dorm, room-mates, etc) stuff hanging in the bedroom or elsewhere to avoid mixing things up.